Any Rolling Stone songs are really good songs. I have searched for a long time a tool that converts YouTube music into MP3. I'm an avid fan on this song that is why i searched for a free tool that converts it. I found http://www.streammp3.org
that can easily convert it. For just a couple of minutes, your chosen song or video will be converted in just pasting the URL on it. The great thing is this tool is 100% free!